Jackson Racing Dual Radiator/Oil Cooler

[Dawan]

Will the sandwich plate fit on the oem forester xt cooler core?


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[gtengr]

Originally Posted by GT86Asia

Before, without the dual radiator, coolant temps would hardly ever change, even out in the track, coolant temps would increase at the most by 2-3%. Now with the coolant cooling the oil, coolant temps can and will vary up to 15% from stock coolant temp.

Makes me wonder if the ecu considers coolant temp as a variable for fuel and timing

[BRX]

Originally Posted by gtengr

Makes me wonder if the ecu considers coolant temp as a variable for fuel and timing

Not sure about coolant, but I've read it pulls timing if oil temp gets high.

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[Kodename47]

Originally Posted by gtengr

Makes me wonder if the ecu considers coolant temp as a variable for fuel and timing

Yes, there are coolant temp parameters for both.

[Dawan]

Originally Posted by Dawan

Will the sandwich plate fit on the oem forester xt cooler core?


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I guess no one knows the answer to my question?


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[BRX]

Originally Posted by Dawan

I guess no one knows the answer to my question?


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It would probably work but I wouldn't double up on sandwich plates.

From my experience so far, the Jackson Racing dual radiator keeps the oil temp exactly or 5-10 degrees higher than coolant temp. Using a lower temp thermostat will keep them both cool in normal or warm weather. In my case mid to high 80s (Celsius). In hot weather (+40 degrees) both temps are between 90-100 with coolant being exactly the same as oil maybe 2-3 degrees cooler at most.

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[Dawan]

Originally Posted by BRX

It would probably work but I wouldn't double up on sandwich plates.

From my experience so far, the Jackson Racing dual radiator keeps the oil temp exactly or 5-10 degrees higher than coolant temp. Using a lower temp thermostat will keep them both cool in normal or warm weather. In my case mid to high 80s (Celsius). In hot weather (+40 degrees) both temps are between 90-100 with coolant being exactly the same as oil maybe 2-3 degrees cooler at most.

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I saw someone stack a mishimoto plate on the oem cooler core and he said it cleared the hood so that isn't the problem. I can always aluminum foil the sertab core for daily. But wondering if there could be fitment issues.


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[Jo0]

Has anyone tried fitting the mishimoto performance fans and shroud on this, or recommend any higher rates fans to couple with the radiator?

Wanting to upgrade the fans and lower fan cut in temps to 200F as well as have the fans run for about a minute or so after the car turns off.

[BRX]

Originally Posted by Jo0

Has anyone tried fitting the mishimoto performance fans and shroud on this, or recommend any higher rates fans to couple with the radiator?

Wanting to upgrade the fans and lower fan cut in temps to 200F as well as have the fans run for about a minute or so after the car turns off.

I'm running the JDL fan shroud with their high performance fans and they are considerably less effective than the factory fans. They simply don't push as much air. At night or in places that don't see +110 degree weather they're fine. I had to install additional two in front of the condenser to compensate.

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[CSG Mike]

Originally Posted by Jo0

Has anyone tried fitting the mishimoto performance fans and shroud on this, or recommend any higher rates fans to couple with the radiator?

Wanting to upgrade the fans and lower fan cut in temps to 200F as well as have the fans run for about a minute or so after the car turns off.

We have run CSG shrouds with powerful fans to eliminate heat issues on *boost + E85* cars running this setup on track.

No need to run fans after the car is not running; your water pump isn't running if your engine is off.

[gtengr]

Originally Posted by Kodename47

Yes, there are coolant temp parameters for both.

Are people customizing tunes for the radiator? Seems like it would cost power unnecessarily if not accounted for.

[Jo0]

Originally Posted by CSG Mike

We have run CSG shrouds with powerful fans to eliminate heat issues on *boost + E85* cars running this setup on track.

No need to run fans after the car is not running; your water pump isn't running if your engine is off.

If I'm not mistaken, doesn't cooler coolant try to travel through the system to where it's hotter even though the pump isn't running? Kind of like a water loop heat pump but without an active pump? So technically it'll be acting as a thermosiphon. thermosiphon wiki

I could've sworn this was covered in class when I was in school.

If not than what would be the purpose of fans kicking on when the engine/car was off when I had severe overheating issues in my old R53 mini and Mk4 GTI? And what would the purpose of turbo timers be if running fans after the car is off is unnecessary?


Only reason why I'm asking is because I plan on doing engine supporting mods first before I go to the power adders. So in my mind the entire Velox AOS kit (AOS, coolant, and cam plate drainback) along with the Jackson racing dual radiator. To give me peace of mind that my motor will be operating at ideal parameters for how hard I drive my cars on a regular basis.

Then I can start thinking about either the NA package or FI, which I'm heavily leaning towards the NA package and moving on to the JSRC when I'm bored with NA

[BRX]

Originally Posted by Jo0

If I'm not mistaken, doesn't cooler coolant try to travel through the system to where it's hotter even though the pump isn't running? Kind of like a water loop heat pump but without an active pump? So technically it'll be acting as a thermosiphon. thermosiphon wiki

I could've sworn this was covered in class when I was in school.

If not than what would be the purpose of fans kicking on when the engine/car was off when I had severe overheating issues in my old R53 mini and Mk4 GTI? And what would the purpose of turbo timers be if running fans after the car is off is unnecessary?


Only reason why I'm asking is because I plan on doing engine supporting mods first before I go to the power adders. So in my mind the entire Velox AOS kit (AOS, coolant, and cam plate drainback) along with the Jackson racing dual radiator. To give me peace of mind that my motor will be operating at ideal parameters for how hard I drive my cars on a regular basis.

Then I can start thinking about either the NA package or FI, which I'm heavily leaning towards the NA package and moving on to the JSRC when I'm bored with NA

Are you sure the fans were running because of the heat and not the AC on your other cars? Fans will still kick in even if the engine is off with the AC on. Of course ignition needs to be on too.

As previously said, with the water pump off the fans can't really do much. No body uses turbo timers anymore either, I've been boosted for almost two years now with oil temps almost always above 200 when turning off the engine. I just let it idle for a few seconds, mainly the time I take to take off my seatbelt and gather my stuff from the back.

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[Jo0]

Originally Posted by BRX

Are you sure the fans were running because of the heat and not the AC on your other cars? Fans will still kick in even if the engine is off with the AC on. Of course ignition needs to be on too.

As previously said, with the water pump off the fans can't really do much. No body uses turbo timers anymore either, I've been boosted for almost two years now with oil temps almost always above 200 when turning off the engine. I just let it idle for a few seconds, mainly the time I take to take off my seatbelt and gather my stuff from the back.

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Cars were completely off.

So I went down the research rabbit hole, thermosiphoning is real. Unsure how prominent of an effect it is for cars, but it's real.

The question now is, is it worth it?

I don't know what actual negative effects of not giving your car a proper cool down is if you're not going to be driving it again shorty after. So I guess aiding the cooling process after a spritied drive if you forget to take it easy before parking isn't a bad thing.